+ Non-tumorous skin diseases
+ Diseases of the Epidermis
+ Ichthyosis
+ Ichthyosis vulgaris
+ Ichthyosis lamellaris
+ X-linked ichthyosis
+ Epidermolytic hyperkeratosis
+ Ichthyosis acquisita
+ Keratosis palmoplantaris, palmoplantar keratoderma
+ Ectodermal dysplasia
+ Psoriasis
+ Psoriatic erytroderma
+ Palmoplantar psoriasis and palmoplantar pustulosis
+ Generalized pustular psoriasis of Zumbusch
+ Lingua geographica
+ Psoriatiform keratosis
+ Infantile acropustulosis
+ Darier's disease
+ Porokeratosis
+ Acrokeratoelastoidosis
+ Pityriasis rubra pilaris
+ Glucagonoma syndrome
+ Acrodermatitis enteropathica
+ Blistering diseases
+ Classification
+ Impetigo
+ Staphylococcal scalded skin syndrome
+ Subcorneal pustular dermatosis of Sneddon-Wilkinson
+ Peeling skin syndrome
+ Acute generalized exanthematous pustulosis (AGEP)
+ Pemphigus vulgaris
+ Pemphigus vegetans
+ Neonatal pemphigus
+ Pemphigus erythematosus Senear-Usher
+ Pemphigus foliaceus
+ Paraneoplastic pemphigus
+ IgA pemphigus
+ Hailey-Hailey (Familial benign pemphigus)
+ Transient acantholytic dermatosis (of Grover)
+ Herpes zoster, varicella, Herpes simplex
+ Herpes simplex
+ Eczema herpeticatum Kaposi Juliusberg
+ Herpes zoster, varicella
+ Bullous pemphigoid
+ Cicatricial pemphigoid
+ Pemphigoid (herpes) gestationis
+ Porphyria cutanea tarda
+ Pseudoporphyria
+ Bulla in diabetes
+ Dermatitis herpetiformis Duhring
+ IgA linear dermatosis
+ Erythema multiforme
+ Toxic epidermal necrolysis of Lyell
+ Stevens-Johnson syndrome
+ Graft versus host reaction
+ Epidermolysis bullosa
+ Epidermolysis bullosa dystrophica
+ Epidermolysis bullosa acquisita
+ Artifical clefts in basaliomas
+ Allergic contact dermatitis, acute
+ Dyshidrotic dermatitis
+ Eczema atopicum (dermatitis atopica)
+ Subacute and chronic (eczem) dermatitis
+ Microbial eczema
+ Granuloma gluteale infantum
+ Toxic contact (irritative) dermatitis, acute
+ Toxic contact (irritative) dermatitis, chronic
+ Seborrhoic dermatitis
+ Pityriasis amiantacea
+ Changes caused by rubbing, scratching and pressure
+ Lichen simplex
+ Strophulus
+ Prurigo gestationis
+ Prurigo nodularis
+ Prurigo senilis
+ Atopic dermatitis
+ Picker's nodule
+ Excoriation
+ Chronic pressure (hip)
+ Amputation stump
+ Granuloma fissuratum
+ Pressure necrosis
+ Tyloma, callus
+ Clavus
+ Morsicatio buccarum
+ Perivascular infiltration of upper dermis
+ Pityriasis lichenoides Mucha Habermann
+ Pityriasis lichenoides acuta
+ Pityriasis lichenoides chronica
+ Pityriasis rosea Gibert
+ Diffuse infiltration infiltration of the upper dermis
+ Lichen ruber planus
+ Lichen verrucosus (hypertrophicus)
+ Lichen ruber, vesicular
+ Lichen planopilaris
+ Lichen planus like keratosis (benign lichenoid keratosis)
+ Lichenoid drug reaction
+ Lichen nitidus
+ Lichen striatus
+ Erythema dyschromicum perstans
+ Poikiloderma Rothmund Thomson
+ Poikiloderma vasculare atrophicans
+ Infiltration of the upper and deep corium
+ Erythema annulare centrifugum (erythema figuratum)
+ Erythema gyratum repens
+ Lymphocytic infiltrate of Jessner-Kanof
+ Urticaria
+ Pruritic urticarial papules and plaques of pregnancy (PUPPP)
+ Well's syndrome
+ Hypereosinophilic syndrome
+ Granuloma faciale (eosinophilicum)
+ Erythema elevatum diutinum
+ Sweet's syndrome
+ Behcet's disease
+ Pyoderma gangrenosum
+ Granulomatous processes of deeper corium
+ Granuloma annulare
+ Granuloma annulare, deep
+ Granuloma multiforme
+ Annular elastolytic granuloma
+ Necrobiosis lipoidica
+ Granulomatosis disciformis Miescher
+ Rheumatoid nodule
+ Chondrodermatitis nodularis chronica helicis
+ Polychondritis recurrens
+ Sarcoidosis
+ Erythema induratum Bazin
+ Foreign body granulomas
+ Silicone granuloma
+ Cat scratch disease
+ Cheilitis granulomatosa Miescher Melkerson Rosenthal
+ Intersticial granulomatous dermatitis
+ Crohn's disease, skin changes
+ Connective tissue disorders
+ Lupus erythematosus
+ Lupus erythematodes, acute
+ Acute neonatal lupus erythematodes
+ Lupus erythematodes, subacute
+ Lupus erythematodes, chronic
+ Lupus erythematodes profundus
+ Dermatomyositis
+ Osteoarthritis, Heberden nodes
+ Scleroderma, morphea
+ Diffuse scleroderma
+ Localized scleroderma, morphea
+ Lichen sclerosus et atrophicus
+ Pachydermoperiostosis
+ Eosinophilic fasciitis
+ Fibromatosis
+ Infantile digital fibromatosis (inclusion body fibromatosis)
+ Intravascular fasciitis
+ Desmoid type fibromatosis, desmoid
+ Striae distensae
+ Skin graft
+ Perforating collagenosis
+ Disorders of elastic fibres
+ Anetoderma
+ Mid dermal elastolysis
+ Actinic degeneration of the corium
+ Pseudoxanthoma elasticum
+ Focal linear elastosis
+ Elastosis perforans serpiginosa
+ Vasculitides
+ Leukocytoclastic vasculitis
+ Other vasculitides
+ Polyarteritis nodosa
+ Eosinophilic vasculitis
+ Churg Strauss syndrome
+ Wegener's granulomatosis
+ Thrombangiitis obliterans (Bürger)
+ Livedo vasculitis
+ Disseminated intravascular coagulopathy (DIC)
+ Giant cell arteritis of Horton (temporal)
+ Purpura
+ Thrombotic thrombocytopenic purpura of Moschowitz
+ Urticarial vasculitis
+ Vasculitis and mycotic sepsis
+ Chronic venous insufficiency
+ Venous varices
+ Ulcus cruris
+ Superficial thrombosis
+ Superficial thrombophlebitis
+ Cutis marmorata, livedo reticularis, livedo racemosa
+ Cryoglobulinemia
+ Cryoglobulinemia in monoclonal gamapathy
+ Mixed cryoglobulinemia
+ Acrocyanosis
+ Malignant atrophic papulosis of Degos
+ Lymphedema
+ Lymphangitis
+ Acute lymphangitis
+ Sclerosing lymphangitis of the penis
+ Panniculitis
+ Erythema nodosum
+ Panniculitis arteficialis (factitial)
+ Calcifying panniculitis
+ Panniculitis caused by cold
+ Eosinophilic panniculitis
+ Lipomembranous panniculitis
+ Traumatic panniculitis
+ Panniculitis caused by steroids
+ Pancreatic panniculitis
+ Other panniculitides
+ Deposition of foreign material in the dermis
+ Amyloidosis
+ Systemic (secondary) amyloidosis
+ Mucinoses
+ Generalized myxedema in hypothyreosis
+ Pretibial myxedema
+ Reticular erythematous mucinosis
+ Papular mucinosis
+ Scleredema
+ Scleromyxedema
+ Myxoma
+ Digital myxoid cyst
+ Calcium deposits
+ Chronic dermatomyositis
+ Subepidermal calcifying nodule
+ Calcinosis scroti
+ Tumoriform calcinosis
+ Calciphylaxis
+ Dystrofic dermal calcifications
+ Osteoma cutis
+ Progressive osseous heteroplasia
+ Gout, arthritis uratica
+ Hemosiderin
+ Argyrosis
+ Titanium pigmentation
+ Deposits of corticosteroids in the dermis
+ Ochronosis
+ Colloid milium
+ Subcutaneous emphysema
+ Tumorous infiltration of the corium
+ Urticaria pigmentosa
+ Histiocytosis X
+ Metastatic infiltration of the dermis
+ Paget's carcinoma of the breast
+ Extramammary Paget's disease
+ Epidermal spread of colonic adenocarcinoma
+ Bacterial, mycotic and parazitic diseases; viruses
+ Bacterial inflammations with suppuration, pyodermia
+ Erosive pustulosis of the head
+ Erysipelas
+ Sepsis (bacterial)
+ Erysipeloid
+ Ecthyma
+ Orf
+ Angulus infectiosus
+ Aphta
+ Phlegmone, gangrene
+ Erythrasma
+ Pitted keratolysis
+ Borreliosis
+ Erythema chronicum migrans
+ Borreliosis (acrodermatitis chronica atrophicans)
+ Adnate listeriosis
+ Nail infection caused by Pseudomonas
+ Mycobacteria, actinomycetes
+ Tuberculosis cutis
+ Scrophuloderma
+ Lupus vulgaris
+ Reaction to BCG vaccination or sensitivity tests
+ Papulonecrotic tuberculid
+ Diseases caused by atypical mycobacteria
+ Leprosy
+ Actinomycosis
+ Madura foot
+ Rhinoscleroma
+ Francisella tularensis, tularemie
+ Mycotic diseases
+ Superficial tinea
+ Candidosis
+ Tinea nigra
+ Dermatophyton
+ Follicular mycosis
+ Deep mycotic processes
+ Cryptococcosis
+ Sporotrichosis
+ Onychomycosis
+ Paronychia candidomycetica
+ Diseases caused by parasites
+ Leishmaniasis
+ Demodicosis
+ Scabies
+ Larva migrans
+ Myiasis
+ Tungiasis
+ Pediculosis capitis
+ Pediculosis pubis
+ Pediculosis corporis
+ Cheyletielosis
+ Insect bite reaction
+ Tick
+ Trombicula autumnalis, Harvest mite
+ Injuries caused by animals
+ Bat bite reaction
+ Injury by stingray
+ Hand, foot and mouth disease
+ Gianotti Crosti syndrome
+ Diseases of hair follicles
+ Acne vulgaris
+ Rosacea
+ Dermatitis perioralis
+ Lupus miliaris disseminatus faciei
+ Alopecia
+ Alopecia areata
+ Diffuse alopecia
+ Defluvium
+ Pseudopelade of Brocq
+ Alopecia in lupus erythematodes
+ Follicular mucinosis (alopecia mucinosa)
+ Primary follicular mucinosis
+ Secondary follicular mucinosis in mycosis fungoides
+ Alopecia androgenica
+ Trichotillomania
+ Tration alopecia
+ Other diseases of hair follicles
+ Purulent folliculitis
+ Folliculitis keloidalis nuchae
+ Folliculitis decalvans, folliculitis abscedens et suffodiens, tufted
hair folliculitis
+ Ostiofolliculitis (superficial folliculitis)
+ Perforating folliculitis
+ Eosinophilic pustular folliculitis, eosinophilic pustulosis
+ Eosinophilic pustulosis Ofuji
+ Keratosis pilaris
+ Lichen spinulosus
+ Trichostasis spinulosa
+ Ulerythema ophryogenes
+ Pili recurvati
+ Tufted hair
+ Plica polonica
+ Cutis verticis gyrata
+ Fox-Fordyce syndrome
+ Diseases of the nails
+ Posttraumatic onycholysis
+ Psoriatic onycholysis
+ Onychoschisis
+ Onychogryphosis
+ Onychophagia
+ Pterygium unguis
+ Unguis incarnatus
+ Foveolae unguis
+ Leuconychia striata
+ Melanonychia striata
+ Syndrome Laugier Hunziker
+ Twenty nail dystrophy
+ Disorders of the sweat glands
+ Hidradenitis axillaris (suppurativa)
+ Eccrine hidradenitis with neutrophils
+ Eccrine hidradenitis with neutrophils after chemotherapy
+ Miliaria
+ Necroses of eccrine sweat glands
+ Myoclonic epilepsy
+ Clear cell metaplasia of eccrine ducts
+ Syringomucinous metaplasia
+ Mucinous metaplasia
+ Sweat gland hyperplasia
+ Exogenic alterations of the skin
+ Scar
+ Cauterisatio
+ Combustio (burns)
+ Congelatio (frostbite)
+ Livedo e calore, erythema ab igne
+ Dermatitis artefacta
+ Arteficial dermatitis, caused by spray
+ Haematoma
+ Radiodermatitis
+ Radiodermatitis acute
+ Radiodermatitis, chronic
+ Phototoxic and photoallergic reactions
+ Berloque dermatitis
+ Syndrome Favre-Racouchot
+ Actinic damage of the skin
+ Metabolic and nutrition problems
+ Pellagra
+ Rachitis, avitaminosis D
+ Scorbut, avitaminosis C
+ Drug reactions
+ Lichenoid drug eruptions
+ Eczematoid drug reaction
+ Drug reaction, multiform type
+ Fixed drug reaction
+ Toxoallergic reaction
+ Vesicular drug reaction
+ Pustular drug reaction
+ Folliculitis caused by EGFR inhibitors therapy
+ Antagonists of TNF-α therapy
+ Therapy by tyrosinkinase inhibitors
+ Necrotising drug reaction
+ Other drug reactions
+ Coumarin necrosis, coumarin caused bleeding
+ Striae after prolonged therapy by corticosteroids
+ Organoid nevi and malformations of the skin
+ Nevus sebaceus (Jadassohn)
+ Epidermal nevus
+ Ichthyosis hystrix (widespread linear epidermal nevus)
+ Inflammatory linear verrucous epidermal nevus (ILVEN)
+ Nevus comedonicus
+ Familial dyskeratotic comedones
+ White sponge nevus of oral mucosa
+ Nevus lipomatosus
+ Nevus collagenicus
+ Fibrous hamartoma of infancy
+ Aplasia cutis congenita
+ Disorders of melanin pigmentation
+ Vitiligo
+ Hypomelanosis guttata
+ Pityriasis alba
+ Albinism
+ Melasma, chloasma
+ Ephelides, freckles
+ Melanocytic macule of the lip or genital
+ Dowling-Degos disease
+ Notalgia paresthetica
+ Melanodermatitis toxica, melanosis Riehl
+ Incontinentia pigmenti
+ Nevus achromicus
+ Other lesions
+ Fistula, sinus tract
Granuloma multiforme, HE 20x (4369)